In this example, the user has specified two features to be used by
Feedback to create the classification query profile. The first
feature is 35 single terms, which must occur in at least three of the
top 80 documents retrieved in the collection. The second is 25
co-occuring terms, in any order, which occur within four terms of each
other, also occuring in at least three of the top 80 document. The
second feature is weighted overall at 1.5 times the first. Many other
Feedback parameters are accepted at their default values.